Table 2.

Excerpt from example daily data in original format

Stratum	Date	Ozone	Temp-erature	n. of deaths
2002 1 Sun	06 jan 2002	2.4	7.1	198
2002 1 Sun	13 jan 2002	17.6	8.2	204
2002 1 Sun	20 jan 2002	49.9	8.9	167
2002 1 Sun	27 jan 2002	42.5	10.5	169
2002 1 Mon	07 jan 2002	4.1	5.2	180
. . . .